package com.qihang.hello.netty.socket;

import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.socket.SocketChannel;
import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
import io.netty.handler.codec.LengthFieldPrepender;
import io.netty.handler.codec.string.StringDecoder;
import io.netty.handler.codec.string.StringEncoder;
import io.netty.util.CharsetUtil;

public class MyClientInitializer extends ChannelInitializer<SocketChannel> {


    @Override
    protected void initChannel(SocketChannel ch) throws Exception {
        ChannelPipeline pipeline = ch.pipeline();
        pipeline.addLast(new LengthFieldBasedFrameDecoder(Integer.MAX_VALUE,0,
                4,0,4));

        pipeline.addLast(new LengthFieldPrepender(4));

        pipeline.addLast(new StringDecoder(CharsetUtil.UTF_8));

        pipeline.addLast(new StringEncoder(CharsetUtil.UTF_8));

        //存放自己的的Handler。
        pipeline.addLast(new MyClientHandler());
    }
}
